Results 41 to 50 of about 427,939 (206)

Stability and Tracking Control of Nonlinear Rigid-Body Ship Motions

open access: yesJournal of Marine Science and Engineering, 2022
The stability and tracking controls of a dynamic ship system are studied in this paper, in order to stabilize and track the desired path of a catamaran ship system.
Chatchawan Aumtab, Thanapat Wanichanon
doaj   +1 more source

A Fully Nonlinear, Dynamically Consistent Numerical Model for Solid-Body Ship Motion. I. Ship Motion with Fixed Heading [PDF]

open access: yes, 2011
In this paper, we describe the details of our numerical model for simulating ship solidbody motion in a given environment. In this model, the fully nonlinear dynamical equations governing the time-varying solid-body ship motion under the forces arising ...
Kuang, Weijia, Lin, Ray-Quing
core   +1 more source

An Algorithm for Interpolating Ship Motion Vectors [PDF]

open access: yesTransNav, 2014
Interpolation of ship motion vectors is able to be used for estimating the lost ship AIS dynamic information, which is important for replaying marine accidents and for analysing marine traffic data.
Qinyou Hu   +3 more
doaj   +1 more source

Feasibility of Wave Measurement by Using a Sailing Buoy and the Artificial Neural Network Technique

open access: yesShanghai Jiaotong Daxue xuebao, 2022
Ocean waves have adverse effects on the operation and safety of ships. Real-time and accurate onboard wave monitoring is essential for green smart ships and navigational safety.
QIN Yichao, HUANG Limin, WANG Xiao, MA Xuewen, DUAN Wenyang, HAO Wei
doaj   +1 more source

A multi-objective DIRECT algorithm for ship hull optimization [PDF]

open access: yes, 2017
The paper is concerned with black-box nonlinear constrained multi-objective optimization problems. Our interest is the definition of a multi-objective deterministic partition-based algorithm. The main target of the proposed algorithm is the solution of a
Campana, E. F.   +7 more
core   +1 more source

Ship roll motion prediction based on â„“1 regularized extreme learning machine. [PDF]

open access: yesPLoS ONE, 2018
In this paper, a new method is proposed for prediction of ship roll motion based on extreme learning machine (ELM). To improve the prediction accuracy and avoid over or under fitting, two techniques are adopted to select the appropriate structure of ELM.
Binglei Guan   +3 more
doaj   +1 more source

Study of motion sickness incidence in ship motion

open access: yesScience and Technology Development Journal, 2015
Motion sickness incidence index (MSI) is one of essential issues in ship motion research to access the comfort of passenger on board cruises and yachts. In the paper, wave energy spectrum and MSI will be analyzed. Evaluation will not only provide an initial feedback of passenger’s comfort in ship design stage but also estimate the suitable speed to ...
Tat - Hien Le, Tuan Anh Nguyen
openaire   +2 more sources

Hydrodynamic analysis of the recovery of USV in regular waves

open access: yesZhongguo Jianchuan Yanjiu, 2020
[Objectives] The recovery of the dinghy is a typical dynamic problem of multi-body interaction,and the stern-slipway launch and retrieval system is widely used in that process.
FENG Dakui   +4 more
doaj   +1 more source

Experimental-numerical analysis of added resistance to container ships under presence of wind-wave loads.

open access: yesPLoS ONE, 2019
Experimental and numerical analyses performed on a scaled-down model of a 1900TEU container-ship are reported herein. Wind-tunnel and towing-tank experiments along with computational-fluid-dynamic simulations were performed to obtain (1) wind-load ...
Wei Wang   +5 more
doaj   +1 more source

Numerical and Testing Analysis of Fin Stabilizers of A Medium Sized Cruise Ship with Overset Grids

open access: yesShanghai Jiaotong Daxue xuebao, 2023
Fin stabilizers represent an effective solution to address the roll motion of ships and improve the comfort of passengers on cruise ships. These devices typically comprise of one or two pairs of retractable fins, symmetrically mounted on either side of ...
YAO Rulin, FAN Qidong, YU Long, WANG Xuefeng
doaj   +1 more source

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